Yea, but compare apples to apples. Go back to the 90's and everyone from all age ranges knows who Pitt and Aniston are. I assume the only people who know who Holland and Zendaya are are much younger than us (I'd need to Google them as well--haven't a clue who they are).

I’m old and don’t follow celebrities either, but this couple starred in one of the highest grossing films of all time last year.